Portable paving plant.



No. 648, 963.' Patented May 8, I900.

.wQs. KING.

PORTABLE PAVING PLANT.

(Application filed 10, 1898.)

(No Model.) 4 Sheets-Sheet I.

p i u "I W :1 Horne THE uonms nrrsns no PHOm-LITHQ, WASHINGTON. o. c,

No. 648,963. Patentad May 8, I900.

- v W. G. KING.

PORTABLE PAVING PLANT.

(Application filed Dec. 10, 1898.)

(No Model.) 4 Sheets-Sheet 2.

ME norms PETERS ca. PHOTO-LUNG wAsniuc'rcm. o. c.

No. 648,963. Pdtented May 8, I900. w. 6. KING.

PORTABLE PAVING PLANT.

(Application filed 1190.. 10, 1399.

4 Sheets-Shad 3.

(No Model I ag m.

QXM u awe:

C1 cane/1 g I TH; NORRIS PETERS ca. PNOTO LITHO.. wnsnmu'mu. n. c

No. 648,963. Patented May 8, I900. W. G. KING.

PORTABLE PAVING PLANT.

(Application filed Dec. 10, 1898.)

I (No Model.) 4 Sheets-Sheet 4.

zzy. 4,.

TNE Noams rz-rzns C0. mom-mum WASNINGYDN. n. c.

. NITED STATES PATENT Fries.

WALTER "GRANT KING, OF BUFFALO, NEW YORK, ASSIGNOR TO THE IROQUOIS IRONWORKS, OF SAME PLACE.

PORTABLE PAVING PLANT.

SPECIFICATION forming part of Letters Patent No. 648,963, dated May 8,1900.

Application filed December 10, 1898. Serial No. 698,894. (No model.)

T on whom it may concern.-

Be it known-that LWALTER GRANT KING, a citizen of the United States,residing at Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful Improvements in Portable Paving Plants,-of which the following is a specification.

My invention relates to that class of plants for the mixing of materialsused in paving in which the various operating parts are supported bymovable platforn1s-'as,for instance,

7 the platforms of railway-cars; and myinvention consists in soconstructing and arranging the parts as to facilitate construction,erection, and use, as fully set forthhereinafter and as illustrated inthe accompanying drawings, in which- Figure 1 is a side elevation of oneof the cars of a railway paving plant with the parts arranged for use.Fig. 2 is a plan view of Fig. 1; Fig. 3, an enlarged side view of theengine and adjacent parts, and Fig. 4 a plan of Fig. 3.

The car A, constituting one of the pair of platforms of a portablepaving plant, is of any suitable construction and supported by trucks BB, as usual, and supports a drying apparatus D, which may be of any ofthe usual constructions and which is arranged substantially at thecenter of the car-platform with a blower I at the end of thecar-platform and a wet-sand elevator J adjacent thereto, and at theopposite end of the platform is supported a sand-bin F, between whichand the adjacent end of the drier is the operating-engine E, a dry-sandelevator L serving to conduct the sand discharged from the drier to theusual screen above the bin F.

IIeretofore it has been customary to support the sand-bin by supports orby a structure having bearings-uponthe ground adjacent to the end of thecar, and in many instances the mixer has also been supported in likemanner. This has proved to be objectionable because of the difficultyinfrequent instances of securing a proper unyielding foundation for thestructure supporting the bin or mixer, and, further, because of thefrequent instances in which such foundation is irregular, while in otherinstances, owing to the presence of tracks adjacent to those on 7 of thestructure supporting the sand-binF in its desired elevated position, thebin and its supporting structure being detachably connected with eachother and with the car, so as to permit dismemberment in order that theparts may be compactly stowed for trans portation. By this means Iprovide a foundation for the bin-supporting structure which isinvariably level, firm, and always available and without the necessityof occupying any space at either side or beyond the end of the caritself.

In many instances it has proved desirable to provide a movable platformG for the mixer H in order that the latter may be carried to the rear orto one side of a car to discharge material into a cart below. I As shownin the drawings, the platform is supported upon elevated guide-rails 3O30, and I place the bearings 6 6 below the position occupied by theplatform during transportation, so that when the platform is carried toone side the structure supporting the sand -bin may be erected at thesame point, thus avoiding the necessity of securing additional spaceupon the car for this purpose. When'the mixer is thus moved to one side,the sandniay be conducted thereto in any suitable manner as, forinstance, by means of a chute 8.

Heretofore the operation'of portable plants has been attended withdificulties and some danger in consequence of the arrangement of theparts necessitating the use of various counter shafts and belts fordriving the blower, dry-sand and wet-sand elevators,and the shaft orshafts of the sand-drying apparatus. To obviate these objections, Iprovide means whereby to secure an almost direct transmission of powerin each case, making use of a high-speed engine, which can be operatedmost advantageously, and'a single counter-shaft with reducing speed-gearby which said counter-shaft is driven at the comparatively-slow speedrequired for the various parts operated therefrom. As this engine E mustoperate both upon the shaft or shafts 15 of the sand-drier and upon thedry-sand elevator L, I arrange th'e'driving-gear of the drier at theinner end thereof, providing each shaft 15 with a beveled gear 16, and Iarrange the operating-engine E adjacent to such gear and between thelatter and the sand-bin F. In this connection I make use of acounter-shaft cl, having pinions 1'7 meshing with the gears 16, and fromthis counter-shaft, geared with the shaft 0 of the engine E, I may drivethe elevators as well as the shafts of the drier. This, however, wouldnecessitate arranging the engine E in such an elevated position that thepinion 10 on its shaft 0 could mesh with the wheel ll on the shaft cl.This might'be done if necessary; but as I prefer to support the enginein a lower position directly on the car-platform I use an intermediategear 24, which may be secured to or turn on a shaft or stud 13, and theelevator L may be driven either from the gear 2t or the gear let ortheir shafts. As shown, the belt 25 of the elevator passes from a pulley40 to a pulley 27 at the top of the elevator, secured to a shaft 29,carrying a drum or pulley 28, around which passes the chain of buckets22 to the lower drum 23 of the elevator above the basin B, into whichthe hot sand falls from a chute t2, into which the drier discharges.

The upper drum 4% of the wet-sand elevator J is driven directly by abelt or chain 45, passing from a wheel or sprocket 46 on thecounter-shaft.

In order to directly drive the shaft of the blower I, theremust be aband extending between the engine-shaft and the blower-shaft. To securethis arrangement, I make the engine-shaft in two sections 0 o, coupledtogether at w, the outer section carrying a pulley a and supported so asto be removable during transportation to' carry the pulley within thearea of the car, and I support the blowerI upon a s upport I,.laterallymovable upon the platform of the car, so that it may be carried outwardto the position shown in Fig. 2 to bring the pulley b of the blowershaftin line with the pulley (t and for transportation to bring the blowerand all parts thereof within the area of the car. I am thus enabled todrive the roller directly without the use of counter-shafts.

It is often difficult to properly supply the drier of a portable pavingplant with sand in consequence of the limited area available in someinstances-as, for instance, when the plant is upon a somewhatelevatedroad-bed or where there are side tracks which cannot be obstructed. Itherefore provide for the dumping of the sand directly opposite the endof the car upon a temporary platform when necessary, so that only theroad-bed upon which the car stands is obstructed, and I arrange theframe K of the wet-sand elevator so as to support the lower drum 20 ofthe elevator in a position just above the track and opposite the end ofthe car, as shown.

Without limiting myself to the precise construction and arrangement ofparts shown and described, I claim as my invention- 1. The combinationwith the car of a portable paving plant, of a mixer, a separableelevated sand-bin structure, bearings on the carplatform near one endfor said structure, and means for supporting the mixer on the platformadjacent to said bearings when the apparatus is in position fortransportation, substantially as described.

2. In a portable plant, a car, a platform supported upon said car andmovable to extend beyond the same, a mixer upon said platform, bearingson the car near one end of the car adjacent to the position of theplatform during transportation and a sand-bin and supports thereforresting on said bearings, when the apparatus is in use, substantially asdescribed.

3. The combination in a portable paving plant, of a car, a separableelevated sand-bin structure, its lower end supported in bearings on thecar, a mixing apparatus movably supported on the car to be shifted to aposition beyond the same, and means for conducting the sand from the binto the mixing apparatus after it is shifted, substantially as described.

at. In a portable paving plant, a car, a sanddrying apparatus supportedcentrally thereon, an elevated sand-bin at one end, an operating-enginebetween the bin and drier, a shaft extending from the engine andprovided with a pulley or, beyond the side plane of the drier, a blowerat the opposite end of the car provided with a pulley in line with thepulley a, substantially as described.

In testimony whereof I have signed my name to this specification inthe'presence of two subscribing witnesses.

IVALTER GRANT KING.

\Vi tnesses:

PHILIP F. LARNER, IIARRY E. IIAY.

